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Most Recent Articles
Faceting Made Easy, Part 2: Faceting Machines and Equipment
What equipment do novice gem cutters need? In Part 2 of “Faceting Made Easy,” Trevor Hannam covers faceting machines, their features, and essential tools.
Zircon Buying Guide
Long valued for its brilliance, zircon is a natural and affordable beauty. Learn more about the quality factors for this gem in our zircon buying guide.
Faceting Made Easy, Part 1: Gemstone Properties
In Part 1 of “Faceting Made Easy,” Trevor Hannam reviews gemstone properties in his introduction to faceting and learning to cut a standard brilliant gem.
Gram Wagon Wheel Gem Design
Can an apex crown improve a gem’s tilt brightness? See how a gram wagon wheel gem design will affect your gem and how it compares to a round brilliant.
Tanzanite Value, Price, and Jewelry Information
Tanzanite has had a rapid rise to prominence among jewelers and gem enthusiasts. Although naturally reddish brown, this transparent zoisite variety achieves a stable, beautiful blue to violet color wth heat treatments.
Agate Buying Guide
Decorative, patterned forms of agate are excellent natural gems. Learn more about agate’s mesmerizing patterns in our agate buying guide.
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Sign up for a Pro Membership"Becoming a Pro Member of IGS just made good sense for my business. The gemology resources are fantastic, and my profile lets potential customers know I am serious about colored gemstones. And frankly, if I get any exposure to potential customers it's a no-brainer."Paul Bierker, Paul Michael Designs
Jeweler, IGS Pro Member
